A Car Travels at a speed of 20 km/h for half the distance and at 30 Km/h in the other half. Find the average speed of the car?
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Answer:
24km/h
Explanation:
Let distance from A to B be x
Time for travel from A to B= x/20
Time for travel from B to A= x/30
Hence,speed for total distance 2x is:
2x/(x/30+x/20)
=2x*60/5x
=24
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